Charles Krauthammer, a Fox News Channel regular and a conservative columnist for the Washington Post, won’t concede that the so-called Benghazi scandal has always been a proverbial dog that won’t hunt, but he’s advising Republicans to give† up the fight.

For more than a year now, GOP lawmakers and the right-wing noise machine have investigated the Benghazi matter to death, but they haven’t found any smoking gun that would bring down the Obama administration.